Ron Stallworth's stranger-than-fiction story from his time with the Colorado Springs Police Department is the basis of the new Spike Lee movie, "BlacKkKlansman."
The most striking thing about the pair's "Fighting Racism" program is the bare honesty of it all.
Mills and three other leaders of the Aryan Brotherhood were convicted in 2006 in a federal racketeering case, which included multiple counts of murder.
Numerous speakers took turns calling for a renewed fight for unity and racial justice, and opposition to white nationalism.
Protesters decrying hatred and racism converged around the country including Colorado on Sunday. Rallies were held in Denver, Durango, Fort Collins and Lafayette.
School segregation was supposed to end with a landmark Supreme Court decision marking its 60th anniversary May 17.